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MINREC, INC. <br />2768 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (303) 245-4101, FAR 242-7908 <br />BLUE RIBBON MINE <br />June 22, 1994 <br />C. E. Johnston <br />Division of Minerals & Geology <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Re: Quarterly Bench Stability Monitoring; <br />Permit No. C-81-047 <br />Dear Ms. Johnston: <br />iii iiiiiiiiiiii iii <br />r~ECFi~/ED <br />JUN 2 a 1994 <br />D~VIS!Ofl pf ivnro~ao ~ U60iu~1 <br />The second quarter 1994 bench stability survey was performed June <br />21, 1994. Vertical angles were measured with a 20 second <br />theodolite and elevations were calculated using predetermined <br />horizontal distances. A summary of this survey, the last two <br />surveys and the 11-20-85 base line survey is as follows: <br /> 11-20-85 11-10-93 04-01-94 06-21-94 <br />S-1 6400.90 6400.60 6400.59 6400.62 <br />S-2 6396.06 6395.86 6395.85 6395.87 <br />S-3 6385.77 6385.56 6385.54 6385.54 <br />S-5 6479.92 6479.52 6479.52 6479.55 <br />S-6 6480.51 6479.79 6479.75 6479.78 <br />S-7 6479.31 6478.92 6479.91 6478.96 <br />S-8 6479.92 6479.47 6479.44 6479.52 <br />Let me know if there ara any yuustions concerning this data. <br />Sincerely, <br />Jim Stover, P.E. <br />Chief Engineer <br />BENMON <br />